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Session Report

Summary:
Test run at: 2022-05-30 22:49:12 GMT
Client Prefix (v4): 170.0.60.x/24
Client AS (v4): 265008
IPv4 Probes: 60
Client Prefix (v6): 2804:3158:xx::/40
Client AS (v6): 265008
IPv6 Probes: 56
Outbound spoofing summary (from the client to our server)
Source address type IPv4IPv6
Private - RFC1918 or ULA rewrittenreceived
Routable receivedreceived
Largest spoofable neighbor prefix length /22/16
Spoof status key
receivedSpoofed packet was received.Pattern of tests from this IP block indicates a switch from allowing spoofing to blocking it.
rewrittenSpoofed packet was received, but the source address was changed en route.
blockedSpoofed packet was not received, but unspoofed packet was.
unknownNeither spoofed nor unspoofed packet was received.

Warnings:

IPv4 AS Route:
This test run probed the following paths in order to infer your ability to send different spoofed source packets. Each node in the graph corresponds to an autonomous system, i.e. different Internet service providers. NOTE: This graph does NOT show if an AS blocks spoofed packets, only the path taken by received spoofed packets. The IP Path Details are available for this run. If non-spoofed packets weren't received at a destination, the traceroute to that destination is not included in this graph and may even cause a totally empty graph.

  

  

IPv4 Adjacent Netblock Testing:

Your host (170.0.60.x/24) can spoof 1023 neighboring addresses (within your /22 prefix)


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
170.0.60.x/24/31265008no
170.0.60.x/24/30265008no
170.0.60.x/24/29265008yes
170.0.60.x/24/28265008yes
170.0.60.x/24/27265008yes
170.0.60.x/24/26265008yes
170.0.60.x/24/25265008yes
170.0.60.x/24/24265008yes
170.0.61.x/24/23265008yes
170.0.62.x/24/22265008yes
170.0.56.x/24/21263328rewritten
170.0.52.x/24/20264974rewritten
170.0.44.x/24/1952800rewritten
170.0.28.x/24/18262784rewritten
170.0.124.x/24/17264204rewritten
170.0.188.x/24/16264975rewritten
170.1.60.x/24/15UNROUTEDrewritten
170.2.60.x/24/1413598rewritten
170.4.60.x/24/13UNROUTEDrewritten
170.8.60.x/24/1214499rewritten
170.16.60.x/24/113762rewritten
170.32.60.x/24/10UNROUTEDrewritten
170.64.60.x/24/915108rewritten
170.128.60.x/24/811685rewritten

Meaning of status in Received column:

noPackets spoofed from adjacent netblock were not received, probably due to blocking
yesPackets spoofed from adjacent netblock were received (but that netblock is within the source AS)
rewrittenThe source address of the probe packets we received differs from the spoofed address. It appears that an intermediate device is rewriting your packet headers.

IPv4 Outbound Filtering Depth:

The tracefilter test found your host able to spoof routable, non-adjacent source addresses through the first 7 IP hop(s).
IPv6 AS Route:
This test run probed the following paths in order to infer your ability to send different spoofed source packets. Each node in the graph corresponds to an autonomous system, i.e. different Internet service providers. NOTE: This graph does NOT show if an AS blocks spoofed packets, only the path taken by received spoofed packets. The IP Path Details are available for this run. If non-spoofed packets weren't received at a destination, the traceroute to that destination is not included in this graph and may even cause a totally empty graph.

  

  
IPv6 probes:
Spoofed source addressDestinationReceived
2001:48d0:101:501::1592001:48d0:101:501::242yes
2001:4978:1fb:6400::d22001:48d0:101:501::242yes
2001:49aa:111:aa00::112001:48d0:101:501::242yes
fd11:1111:1111::11112001:48d0:101:501::242yes
2001:48d0:101:501::1592001:48d0:101:501::247yes
2001:4978:1fb:6400::d22001:48d0:101:501::247yes
2001:49aa:111:aa00::112001:48d0:101:501::247yes
fd11:1111:1111::11112001:48d0:101:501::247yes
2001:48d0:101:501::1592001:610:510:115:192:42:115:98yes
2001:4978:1fb:6400::d22001:610:510:115:192:42:115:98no
2001:49aa:111:aa00::112001:610:510:115:192:42:115:98no
fd11:1111:1111::11112001:610:510:115:192:42:115:98no
2001:48d0:101:501::1592001:630:212:225:225:90ff:fe0c:45a6yes
2001:4978:1fb:6400::d22001:630:212:225:225:90ff:fe0c:45a6no
2001:49aa:111:aa00::112001:630:212:225:225:90ff:fe0c:45a6no
fd11:1111:1111::11112001:630:212:225:225:90ff:fe0c:45a6no
2001:48d0:101:501::1592001:770:1c:7:225:90ff:fe0c:acb4yes
2001:4978:1fb:6400::d22001:770:1c:7:225:90ff:fe0c:acb4yes
2001:49aa:111:aa00::112001:770:1c:7:225:90ff:fe0c:acb4yes
fd11:1111:1111::11112001:770:1c:7:225:90ff:fe0c:acb4yes
IPv6 Adjacent Netblock Testing:
Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
2804:3158:xx::/40/120265008yes
2804:3158:xx::/40/112265008yes
2804:3158:xx::/40/104265008yes
2804:3158:xx::/40/96265008yes
2804:3158:xx::/40/88265008yes
2804:3158:xx::/40/80265008yes
2804:3158:xx::/40/72265008yes
2804:3158:xx::/40/64265008yes
2804:3158:xx::/40/56265008yes
2804:3158:xx::/40/48265008yes
2804:3158:xx::/40/40265008yes
2804:3158:80xx::/40/32265008yes
2804:31d8:xx::/40/24UNROUTEDyes
2804:b158:xx::/40/16UNROUTEDyes

Meaning of status in Received column:

yesPackets spoofed from adjacent netblock were received (but that netblock is within the source AS)
Summary:
The results from all tests are aggregated to produce a summary "State of IP Spoofing" report.
Feedback:
We welcome questions and feedback to the Spoofer Information Mailing List and invite users to join the Spoofer Users Mailing List for discussion and announcements.
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